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qSOFA Score Calculator

Work out qsofa score instantly with clear inputs, formula shown and shareable results.

About qSOFA Score Calculator

Scores the three quick SOFA criteria — respiratory rate of 22 or more, systolic pressure of 100 mmHg or less and altered mentation.

Formula

qSOFA

One point each for respiratory rate >=22, systolic BP <=100 mmHg and GCS <15; a score of 2 or more flags higher mortality risk

Worked example

With the default values below, qSOFA Score Calculator returns qSOFA score of 2. Change any input above and every figure here is recalculated in your browser.

Inputs used

Respiratory rateaccepts 4–60 breaths/min
24 breaths/min
Systolic pressureaccepts 40–250 mmHg
98 mmHg
Glasgow Coma Scaleaccepts 3–15
15

Results

qSOFA score
2
Interpretation
Two or more criteria — associated with higher mortality, consider sepsis
Criteria met
respiratory rate 22 or more; systolic 100 mmHg or less

Step by step

  1. 1Values used
  2. 2qSOFA
  3. 3qSOFA score= 2
  4. 4Interpretation= Two or more criteria — associated with higher mortality, consider sepsis
  5. 5Criteria met= respiratory rate 22 or more; systolic 100 mmHg or less

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

Is qSOFA a sepsis diagnosis?

No. It is a bedside prompt for further assessment, not a diagnostic or screening replacement for clinical judgement.

How does it compare with SIRS?

qSOFA was derived from Sepsis-3 data as a simpler predictor of poor outcome outside intensive care.

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